Installation Technique for XLPE Cable

June 28th, 2007

Y.Nishiyama

Cable joints are needed to connect cables with adequate interval.

Many joints

Many procedures of jointing Cost

Disturbing the traffic for a long time Public Safety

Troubles might occur at joints Reliability

Reduction the number of joints

Extend the cable length

Make much effort to extend the cable length

Why Long Cables are Useful?

South Route (1993/6)

Kawagoe-Nishinagoya

(2002/6)

６００ｍ

１，８００ｍ

Tokai-Matsugae (1998/3)

Ama-Matsugae (1999/6)

２，５００ｍ

Shield Wire

Jacket

Insulator

Conductor

MeteoricSheath

Length of the cable ( per 1 span )

275kV XLPE Cable (2,500 mm2) in CEPCO

South Route (Max Length 600m)

Cable Installation site

27km2circuits

Tokai-Matsugae Line (Max Length 1800m)

Cable Installation siteDischarging Cable

Transporting CableMotor rollers

19km1circuits

Ama-Matsugae Line (Max Length 1800m)

Least clearance Bridge

Installation site on the ship

23km2circuits

Kawagoe-Nishinagoya Line (Max Length 2500m)

Transporting Cable

Cable Installation site

Turntable14km

2circuits

500kV XLPE Cable (2,500 mm2) in TEPCOShin-Keiyo-Toyosu Line (Max Length 1800m)

Twin pulley system

Magnetic belt system

Traverse Cable Pay-Out Method

Career system for cable transfer in tunnel

40km2circuits

Cable

Rail

Guide Roller

Twin Pulley

Connecting Pipe

Cable Guide Roller

Magnetic belt

L-shape Steel Strip

Rail